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Introductory Physics Homework Help Forum
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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Homework Help Guidelines for Students and Helpers
Last Post
Sep 23, 2014
Replies
2
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60K
Sticky
Hey! I posted in homework help but now it's gone!
Last Post
May 10, 2014
Replies
0
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24K
Sticky
Homework Help: Introductory Physics Formulary
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Mar 17, 2012
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6
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134K
Force between the plates of a capacitor with dielectric slab inserted
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14 minutes ago
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27
Views
83
Can you please explain Bernoulli's equation?
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41 minutes ago
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7
Views
60
Charge upon a parallel plate capacitor
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Today, 10:03 PM
Replies
16
Views
63
Showing that this equation is a solution to the linear wave equation
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Today, 8:41 PM
Replies
8
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72
Find momentum transfer and force on the head with and without a helmet
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Today, 1:28 PM
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19
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153
Percentage change in the density of a gas
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Today, 12:38 PM
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5
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33
Capacitance of a parallel plate capacitor with a metal plate kept inside
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Today, 8:51 AM
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10
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68
Incompatibility between ideal gas equations of state
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Today, 6:37 AM
Replies
2
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31
Amplitude of a circular ripple at distance r from source
Last Post
Yesterday, 10:54 PM
Replies
6
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50
Centrifugal and inertial force in centrifuge
Last Post
Yesterday, 10:10 PM
Replies
6
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62
Graph for sinusoidal wave travelling to the left
Last Post
Yesterday, 5:23 PM
Replies
13
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87
Percentage of glass bottle under water=60%, density of bottle and volume=?
Last Post
Yesterday, 2:05 PM
Replies
15
Views
115
Find the final velocity of the bobsled after the last bobsledder jumps in
Last Post
Yesterday, 11:08 AM
2
Replies
38
Views
164
Rigid Body Problem Involving a Tilted Rotating Disc
Last Post
Yesterday, 9:12 AM
Replies
10
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100
Why is electric field at the center of a charged disk not zero?
Last Post
Yesterday, 3:52 AM
Replies
4
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70
Undamped forced oscillator
Last Post
Yesterday, 1:30 AM
Replies
6
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78
Relationship between buoyancy Force and the gravitational force between two bodies?
Last Post
Monday, 10:22 PM
Replies
5
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65
Differentiating the equation for the mechanical energy of a spring
Last Post
Monday, 7:57 PM
Replies
15
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110
Puck collision with rod using angular momentum conservation
Last Post
Monday, 6:03 PM
Replies
32
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265
Driving force from buzzer for jacket of length L
Last Post
Monday, 5:35 PM
Replies
2
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42
Find the value of ##t## when ##P## returns to ##X##- Kinematics
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Monday, 4:23 PM
Replies
18
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299
Electric force on the charge kept at the centre of a metallic shell
Last Post
Sunday, 11:08 PM
Replies
32
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244
Placing rock under ladder to stop it from slipping
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Sunday, 7:35 PM
Replies
10
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154
Motional EMF in the presence of a time-varying magnetic field
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Sunday, 4:24 PM
Replies
11
Views
142
A book rests at an angle against one side of a bookshelf...
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Sunday, 2:48 PM
Replies
2
Views
66
Vertical loop problem
Last Post
Sunday, 1:48 PM
Replies
7
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81
100m dash kinematics problem
Last Post
Sunday, 8:26 AM
Replies
14
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1K
Please check my understanding of these two questions about Atmospheric Pressure
Last Post
Saturday, 10:13 PM
Replies
5
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112
Electric field at a point close to the centre of a conducting plate
Last Post
Saturday, 8:38 PM
Replies
7
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110
Finding the electric potential above a charged metal toroid (electrostatic lens)
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Saturday, 8:09 PM
Replies
4
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113
Pressure in a gas container measured with a barometer and a U pipe
Last Post
Saturday, 6:52 PM
Replies
6
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72
AP French Relativity chapter 3 problem
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Saturday, 10:29 AM
Replies
2
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110
Linear Acceleration of an Object Hanging by a String from a Rotating Wheel
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Friday, 5:59 PM
Replies
12
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164
Spring Problem with 3 springs suspending 3 masses in series in an elevator
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Friday, 5:37 PM
Replies
9
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145
Plate sliding on ice with friction (Physics competition question)
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Friday, 2:38 PM
2
Replies
41
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377
Pressure of water at the end of faucet coming from an elevated water barrel?
Last Post
Friday, 12:06 PM
Replies
15
Views
196
Finding the potential difference in a circuit
Last Post
Thursday, 7:37 PM
Replies
2
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78
Air table puck collision
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Thursday, 5:21 PM
Replies
3
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92
What does atmospheric pressure have to do with the gauge pressure?
Last Post
Thursday, 2:24 PM
Replies
3
Views
153
Elevator uniform speed problem
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Thursday, 2:09 AM
Replies
11
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4K
Relativistic momentum in terms of another relativisic momentum
Last Post
Feb 1, 2023
Replies
6
Views
130
Unknown symbol help
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Feb 1, 2023
Replies
5
Views
122
Physics I problem: Find the work done by a variable Force along a defined path
Last Post
Feb 1, 2023
Replies
23
Views
351
MIT OCW, 8.02, Electromagnetism: Charged Cylindrical Shell
Last Post
Feb 1, 2023
Replies
7
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130
How does soap water membrane thickness affect surface tension?
Last Post
Feb 1, 2023
Replies
2
Views
118
Induced polarization for collision between conducting spheres
Last Post
Jan 31, 2023
Replies
4
Views
150
Flux from magnet (Why is the Flux not zero through the loop?)
Last Post
Jan 31, 2023
Replies
9
Views
181
At what time after t=0 does the object again pass its initial position?
Last Post
Jan 31, 2023
Replies
19
Views
200
Acceleration of Uranium 238 ion through a potential difference
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Jan 30, 2023
Replies
27
Views
232
Why does this not work? Projectile Motion problem for Dynamics Class
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Jan 30, 2023
Replies
19
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331
Length element in Ampere's law
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Jan 30, 2023
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32
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379
Electrostatic equilibrium problem
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Jan 29, 2023
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6
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114
Derivation for capacitance of cylindrical capacitor
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Jan 29, 2023
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2
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106
Is there an alternate symbol for mu for x 10^-6 ?
Last Post
Jan 29, 2023
Replies
2
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172
Which of these is correct when the absolute temperature of a gas is doubled?
Last Post
Jan 29, 2023
Replies
12
Views
169
Why is temperature constant after gas has expanded?
Last Post
Jan 29, 2023
Replies
33
Views
319
Finding ##v## for four particles after being released from square
Last Post
Jan 29, 2023
Replies
24
Views
276
Finding the final speed of a space probe using work and kinetic energy
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Jan 29, 2023
Replies
7
Views
178
Definition of information
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Jan 29, 2023
Replies
14
Views
210
Torque calculation for a compound pendulum
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Jan 28, 2023
Replies
15
Views
176
Net work and kinetic energy (pushing a wagon to accelerate it)
Last Post
Jan 28, 2023
Replies
1
Views
161
Measurement of gastrocnemius muscle (attaches to the Achilles tendon) tightness with a special device
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Jan 28, 2023
Replies
18
Views
267
Why do we need conservation of energy for a rod accelerating due to magnetic force?
Last Post
Jan 27, 2023
Replies
15
Views
250
Solving linear charge density from volume charge density using Gauss' Law
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Jan 27, 2023
Replies
1
Views
144
Solved problem: Particle trajectory with fixed angle between acceleration and velocity
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Jan 26, 2023
Replies
3
Views
196
Which statement is true? (Velocity and Acceleration of a Tennis Ball)
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Jan 26, 2023
2
Replies
68
Views
872
Discontinuous voltage graph for bullet going through metal coils
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Jan 26, 2023
Replies
2
Views
131
Another method for Continuous Charge Distributions Electric Potential problem
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Jan 26, 2023
Replies
13
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185
B-field for a half-infinitely long wire
Last Post
Jan 26, 2023
Replies
9
Views
223
Manometer Force analysis
Last Post
Jan 26, 2023
Replies
2
Views
173
Kinematics vs Energy Approach (work done on an accelerating car by the engine)
Last Post
Jan 26, 2023
Replies
11
Views
205
Max speed of proton in cyclotron
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Jan 25, 2023
Replies
7
Views
170
Finding velocity for projectile given distances and launch angle
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Jan 25, 2023
Replies
3
Views
193
Graphing electric potential for two positive charges
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Jan 25, 2023
Replies
16
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203
Fictitious forces on a rigid body
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Jan 25, 2023
Replies
9
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231
Which system to apply conservation of momentum to?
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Jan 24, 2023
Replies
2
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182
How do I find way of comparing the density of the Earth and the Moon?
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Jan 24, 2023
Replies
9
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218
Simple harmonic motion for an electric dipole in a uniform electric field
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Jan 24, 2023
Replies
1
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145
Electrostatics homework problem help
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Jan 24, 2023
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12
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613
Integrating electric field of rod
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Jan 24, 2023
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25
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342
I cannot work out constants a and b -- please help
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4
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206
Dynamic circular motion
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6
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193
Work is done against friction
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11
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275
Average force when a bouncy ball collides with surface
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Jan 23, 2023
Replies
23
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829
Atmospheric muons' lifetime
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Jan 23, 2023
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11
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221
Finding equivalent capacitance
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Jan 22, 2023
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6
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229
Standing wave, phase and antiphase
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Jan 22, 2023
Replies
7
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245
Difference in Wave Phase Question
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Jan 22, 2023
Replies
8
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2K
Volume-pressure equation for an expanding ideal gas
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Jan 22, 2023
Replies
10
Views
241
Vector equations for adding speeds while switching frames of reference in Galilean physics
Last Post
Jan 22, 2023
Replies
17
Views
770
Calculate the distance a projectile travels using a rough approximation (Hooke's Law) for a slingshot
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2
Replies
35
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560
Determining if a pipe is open or closed from given the resonant frequencies
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9
Views
15K
When is power constant in this scenario?
Last Post
Jan 21, 2023
Replies
25
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300
Ideal gas problem -- What is the volume of the gas when its temperature is maximum?
Last Post
Jan 21, 2023
Replies
3
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242
What is the electric field strength inside the capacitor?
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Jan 21, 2023
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6
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5K
What exactly is wrong here? (F=ma when Force and acceleration are zero)
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Jan 20, 2023
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17
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379
The Physics of Light and Sound
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Jan 20, 2023
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8
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254
Areal velocity formula
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Jan 19, 2023
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2
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271
Heating up of tyres on the road
Last Post
Jan 19, 2023
Replies
30
Views
347
Proving SHM for charged spring mass system in electric field
Last Post
Jan 19, 2023
Replies
2
Views
199
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Homework Help
Intro Physics Homework Help
Get introductory physics homework help, step by step from mentors. We do not give answers but guide you to it with your effort.
This is for algebra and calculus based general physics homework. Usually this is high school and undergraduate level problems.
Please use the template when asking for help, include all information and provide a reasonable attempt at a solution.
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